from Elijah by Felix Mendelssohn
Number 29 on this page. You have to scroll down to find 29. When you play your voice part, if you are wearing earbuds, you will hear your part in your right ear and other parts in your left ear. You can control the speed of the playback by clicking on the three dots at the right side of the audio player.
If you think you know your notes, it is time to try to sing along with the pros. Listen until you can hear your part, then try. If you cannot do it, listen again. You can always go back to the note learning and gain confidence. Then try again to sing along. It might take a lot of listening, but that is what you will have to do in rehearsal too.
Beautifully sung in German by the Stuttgart Radio Symphony Orchestra.
Great style! The best recording on Youtube.